South Sumatra Air Pollution in the Morning (21/12) Worst in Indonesia

Air quality in South Sumatra this morning is the worst in Indonesia. Based on the Air Pollution Standard Index (ISPU) page of the Ministry of Environment and Forestry (KLHK) on Sunday (21/12/2025) at 08.00 AM WIB, it was revealed that the air quality index in South Sumatra was 100.

According to the Directorate of Air Pollution Control of KLHK, ISPU is a unitless number used to describe ambient air quality conditions at a certain location, based on its impact on human health, aesthetic value, and other living things.

ISPU calculations are based on the measurement results of seven air pollutant parameters: PM10, PM2.5, NO2, SO2, CO, O3, and HC. Measurements of these air pollutant parameters are spread across 72 stations in various regions.

(Read: How Do Residents Identify Clean Air Amidst Poor Air Quality?)

Based on Ministerial Regulation of KLHK No. 14 of 2020 concerning the Air Pollution Standard Index, ISPU in the range of 0-50 indicates good air quality, the range of 51-100 means moderate air quality, and the range of 101-200 indicates unhealthy air quality that is detrimental to humans, animals, and plants.

Furthermore, very unhealthy air quality in the range of 201-300 can increase health risks for sensitive groups. Meanwhile, hazardous air quality in the range of more than 300 can seriously harm health and requires rapid intervention.

Below South Sumatra, Banten ranks second worst in Indonesia with an air quality index of 95. Then, in third place is Riau with an air quality index of 93.

This means that no region has hazardous air quality.

Here is a list of the 10 provinces with the worst air quality index in Indonesia on Sunday, December 21, 2025, at 08.00 AM WIB.

1. South Sumatra: 100

2. Banten: 95

3. Riau: 93

4. Jambi: 88

5. Aceh: 87

6. North Sumatra: 84

7. North Sumatra: 81

8. Lampung: 74

9. Central Java: 69

10. West Java: 67

(Read: How Do Residents Identify Clean Air Amidst Poor Air Quality?)